北京市农林科学院新型肥料长期定位试验站始建于2006年，位于房山区，试验面积约20亩。试验站现有三个试验区域，（1）长期定位试验区；（2）原位渗滤试验区；（3）田间试验区。长期定位试验紧密结合北京市的实际情况，以土壤培肥与土壤环境质量提高为研究目标，围绕循环农业、都市型农业的需求为出发点，以北京市城乡农业生产与日常生活有机废弃物为主要研究内容，以期达到废弃物使用的资源化、安全化和可持续化，为保障农产品清洁生产提供技术支撑。2011年，该定位试验站纳入“农业部农业环境面源污染野外观测站”，2017年，试验站参加由国家农业创新联盟与中国农业科学院牵头的“农业基础性长期性科技工作——土壤质量监测与预警”项目。试验站运行至今，已获取1600余个永久保存的土壤样品，累计获得30000余个试验数据。
原位渗滤试验区是以原位采集北京地域典型土壤（潮土、潮褐土、菜园土）开展渗滤试验的研究区域，该试验区的建立为全国首创。试验区现有大渗滤试验
土柱12 个，小渗滤试验土柱72 个，自运行以来，已开展国内各种类型的缓释肥料氮素损失途径的研究。
田间试验区目前主要开展3方面试验研究：1、全生物可降解地膜应用评价；2、沼液长期施用农学和土壤环境效应；3、北京市农田氮磷流失（淋溶）控监测点。
The new fertilizer long-term positioning experimental station of the Beijing Academy of Agriculture and forestry sciences was established in 2006，located in Fangshan District in Beijing, and the test area is about 1.3 hectare. The experimental station has three experimental areas: (1) long-term positioning test area; (2) in situ leachate test area; (3) field test area. The long-term positioning test is closely combined with the actual situation of Beijing, with soil fertility and soil environmental quality improvement as the research target. It focuses on the needs of circular agriculture and urban agriculture; and takes the organic waste of urban and rural agricultural production and daily life in Beijing as the main research content; in order to achieve the recycling, safety and sustainability of waste use; and provide technical support for ensuring the cleaner production of agricultural products. In 2011, the experimental station was included in the "field observation station of agricultural environmental non-point source pollution of the Ministry of Agriculture". In 2017, the experimental station participated in the project of "agricultural basic long-term scientific and technological work - soil quality monitoring and early warning" led by the National Agricultural Innovation Alliance and the Chinese Academy of Agricultural Sciences. Up to now, more than 1,600 permanent soil samples have been obtained and 30,000 experimental data have been obtained.
The in situ leachate test area is a research area for infiltration test based on in-situ collection of Typical Soils in Beijing (tidal soil, tidal cinnamon soil and vegetable garden soil). The establishment of the test area is the first in China. There are 12 large percolation test soil columns and 72 small percolation test soil columns in this experiment. Since its operation, the nitrogen loss pathways of various types of slow-release fertilizers in China have been studied.
The field experimental area mainly carries out three aspects of experimental research: 1. Application evaluation of fully biodegradable plastic film; 2. Agronomic and soil environmental effects of long-term application of biogas slurry; 3. Monitoring point of nitrogen and phosphorus loss (leaching) in farmland in Beijing.
